tmt

Provides conditional maximum likelihood (CML) item parameter estimation of both sequential and cumulative deterministic multistage designs (Zwitser & Maris, 2015, doi:10.1007/s11336-013-9369-6) and probabilistic sequential and cumulative multistage designs (Steinfeld & Robitzsch, 2021, doi:10.31234/osf.io/ew27f). Supports CML item parameter estimation of conventional linear designs and additional functions for the likelihood ratio test (Andersen, 1973, doi:10.1007/BF02291180) as well as functions for simulating various types of multistage designs.

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